Rescuers were kept in touch through radio links.

【touch】营救人员通过无线电与外界保持联系。

This place must have some kind of radio link!

这地方一定有无线电装置吧！

A popular technique for bringing down aerial drones is to jam their radio links with high-intensity electromagnetic chatter, or to wrest control of the craft itself through a technique known as " spoofing" .

击落空中无人机的一种流行技术是用高强度电磁颤动干扰它们的无线电链路，或者通过一种称为“欺骗”的技术夺取对飞行器本身的控制。